/*
* ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001,2002 by Alexander Barton (alex@barton.de)
+ * Copyright (c)2001-2014 Alexander Barton (alex@barton.de) and Contributors.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* Please read the file COPYING, README and AUTHORS for more information.
+ */
+
+#include "portab.h"
+
+/**
+ * @file
+ * strlcpy() and strlcat() replacement functions.
+ *
+ * See <http://www.openbsd.org/papers/strlcpy-paper.ps> for details.
*
- * strlcpy() and strlcat() replacement functions
+ * Code partially borrowed from compat.c of rsync, written by Andrew
+ * Tridgell (1998) and Martin Pool (2002):
+ * <http://cvs.samba.org/cgi-bin/cvsweb/rsync/lib/compat.c>
*/
+#include <string.h>
+#include <sys/types.h>
-#include "portab.h"
+#ifndef HAVE_STRLCAT
+
+GLOBAL size_t
+strlcat( char *dst, const char *src, size_t size )
+{
+ /* Like strncat() but does not 0 fill the buffer and
+ * always null terminates. */
+
+ size_t len1 = strlen( dst );
+ size_t len2 = strlen( src );
+ size_t ret = len1 + len2;
+
+ if( size && ( len1 < size - 1 )) {
+ if( len2 >= size - len1 )
+ len2 = size - len1 - 1;
+ memcpy( dst + len1, src, len2 );
+ dst[len1 + len2] = 0;
+ }
+ return ret;
+} /* strlcat */
+
+#endif
+
+#ifndef HAVE_STRLCPY
-static char UNUSED id[] = "$Id: strlcpy.c,v 1.1 2002/12/26 13:18:46 alex Exp $";
+GLOBAL size_t
+strlcpy( char *dst, const char *src, size_t size )
+{
+ /* Like strncpy but does not 0 fill the buffer and
+ * always null terminates. */
-#include "imp.h"
+ size_t len = strlen( src );
+ size_t ret = len;
-#include "exp.h"
+ if( size > 0 ) {
+ if( len >= size ) len = size - 1;
+ memcpy( dst, src, len );
+ dst[len] = 0;
+ }
+ return ret;
+} /* strlcpy */
+#endif
/* -eof- */